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Home Brew Forums > Home Brewing Beer > DIY Projects > Brew Stands > Holes or slits in dip tube?
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Old 01-30-2011, 06:04 PM   #1
drumming102
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Default Holes or slits in dip tube?

Made a "dip tube" today for my boil kettle and am at an impasse as to whether to drill small holes on the underside or use the dremel and make slits for the pickup.

What do you guys think? I mostly use a hop bag but sometimes throw pellets in without.

(excuse the ****ty solider job. Was my first time)















Parts list (Cost somewhere in the range of $25)

All the tubing and fittings are 1/2" copper
9- 45 degree fittings
1- "T" Fitting
1- 90 degree fitting
1- 5' section of 1/2" copper tubing (gives you extra to make mistakes but can be done with 4" if needed.
1- 1/2" NPT threaded male to 5/8" compression fitting to attach to your weld less fitting for your ball valve

All of the short sections in the octagon are 4" except where the "T" is. I just eyeballed the sizes for the T section. Your measurements will vary on the riser to get to your Ball valve so giving you mine won't help. Just MAKE SURE YOU DRY FIT EVERYTHING (like in the first pic) BEFORE YOU SOLDER! Use a sharpie to mark where your pieces need to line back up to is the easiest way I've found to keep all my pipes straight. Will take a pic of the slits i cut later but they are just evenly spaced every half inch and cut with a cutting wheel in my dremel. Use a bench vise to steady the piece to get the best looking cuts.

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Old 01-30-2011, 06:33 PM   #2
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Awesome "dip tube." I have to make one now. It should work out beautifully when you whirlpool. How long did you make each one of those eight straight pieces?

I suggest going with the slits. That's what I did for my false bottom manifold in my cooler MLT. Slits filter better, and you can have more of them. I spaced them all 1/2" apart.

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Old 01-30-2011, 06:49 PM   #3
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Took about 2.5 hrs over the course of the morning here at work (I was bored).

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Old 01-30-2011, 07:12 PM   #4
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Anyone else prefer holes?......In their dip tubes I mean.

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Old 01-30-2011, 07:40 PM   #5
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Quote:
Originally Posted by drumming102 View Post
Took about 2.5 hrs over the course of the morning here at work (I was bored).
I guess I didn't word the question correctly. How many inches is each length of copper tubing? I guess what I'm asking for are the dimensions of the manifold.

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Anyone else prefer holes?......In their dip tubes I mean.
Nudge, nudge, wink, wink, say no more.
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Old 01-30-2011, 08:25 PM   #6
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Quote:
Originally Posted by EarthBound View Post
I guess I didn't word the question correctly. How many inches is each length of copper tubing? I guess what I'm asking for are the dimensions of the manifold.



Nudge, nudge, wink, wink, say no more.
i have a 12" hole in the top of my kettle so I made it 11.5" acrost and each tube is 4" long.



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Old 01-30-2011, 08:34 PM   #7
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I just have a simple pickup tube in my boil, in my mash I did slits with a dremel for the pickup and I am adapting to a HERMS the return manifold will have holes.

If you have access to a drill press and time to spare I would do many TINY holes, otherwise I would do the slits.

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Old 01-30-2011, 08:38 PM   #8
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Slits are probably easier to create than holes because of the convex shape of the tubing. If you have access to a drill press, then drilling the holes wouldn't be as difficult as using a handheld drill... I guess. Slits with a dremel would still be easier, IMO. Just clamp the manifold to a bench and it will take no time. Also, make sure to do the slits or holes on the bottom of the manifold.

Here's another thread where this was discussed... sorta.

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Old 01-30-2011, 08:52 PM   #9
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Quote:
Originally Posted by ToV View Post
I just have a simple pickup tube in my boil, in my mash I did slits with a dremel for the pickup and I am adapting to a HERMS the return manifold will have holes.

If you have access to a drill press and time to spare I would do many TINY holes, otherwise I would do the slits.
I was thinking about doing this same thing for my MLT Keggel but am scared of stuck sparges. Like this because of the savings but scared of the sucks.
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Old 01-30-2011, 10:57 PM   #10
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Quote:
Originally Posted by drumming102 View Post
I was thinking about doing this same thing for my MLT Keggel but am scared of stuck sparges. Like this because of the savings but scared of the sucks.
I've been using the slit cut manifold in my mash for at least the last 15 batches, none has stuck yet. Since it already exists I am keeping it place for my HERMS system, if I develop an issue, I shall replace it with something else.
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